Stampraffixing machine



c. E. SKERRY. STAMP AFFIXING MACHINE.

APPLICATION FILED JULY 12 1916.

Patented Sept 2, 1919."

2 SHEETS-SHEET 1.

awomkw wun 12'. may

NocnAPll cm, WASlllNq'ro To all whom it may concern:

srarns PATENT ornroa CLARENCE EDMUND SKERRY, OF BRATTLEBORO, VERMONT,ASSIGNOR TO NATIONAL AUTOMATIC MACHINE COMPANY, OF BRATTLEBORO, VERMONT,A CORPORATION OF VERMONT.

Specification of Letters Patent.

Patented Sept. 2, 1919.

Application filed July 12, 1916. Serial No. 108,810.

Be it known that I, CLARENCE E. SKERRY, a citizen of the United States,and resident of the city of Brattl'eboro, in the county of \Vindham andState of Vermont, have invented certain new and useful Improvements inStamp-Affixing Machines, of which the following is a specification.

This invention relates to improvements in power operated mechanism foraffixing postage stamps to envelops or the like, and refers moreparticularly to machines of this character which perform all of theoperations automatically after the envelop is started through themachine.

The object of this invention is to provide means for automaticallydiscontinuing the feeding action upon the envelop during the time thestamp is being applied thereto.

WVith these and other'objects in-view, the

invention consists of certain novel features of construction, as will bemore fully described, and particularly pointed out in I the appendedclaims.

In the accompanying drawings: a

Figure 1 is a sectional elevation of the machine on line 11 of Fig. 3showing the feed rolls in full and the mechanism by which they areseparated during the time the stamp is being fixed to the envelop.

Fig. 2-- is a View partly in section 'on line 22 of Fig. 1 showing thelongitudinally movable cams which act upon and raise the feed roll.

Fig. 3 is a detail sectional view illustrating the operating cam in theaffixing machine as about to act upon the lever arm and operate the rockshaft.

Referring to the drawings, 10 designates the table over which theenvelops to be stamped are fed by means of the feed rolls 11 and 12. Thelower feed roll'll is mounted on and driven through the shaft 13, bymeans not shown, said shaft being supported in the bearings 14: belowthe table, its upper edge extending through an opening 15 therein justabove the upper surface thereof.

The upper feed roll 12 is mounted on the shaft 16 which is journaled inthe end bearings 1-7. These bearings are each provided with a supportingstem 18 mounted to slide vertically through their respective bearings19, which bearings are connected to the frame 21 that is bolted at 22 tothe side 23 of the table 10. A roll 20 is pivotally mounted in the upperend of each of these stems 18. The upper surface of this frame isgrooved longitudinally as at 2 1, and in this groove is slidably mounteda bar 25 having two inclined or wedgeshaped members 26 and 27 mountedthereon to serve as cams for acting through the rollers 20 to raise thefeed roll 12 when the cam bar 25 is moved to the left, and to releasethe roll to return to normal under influence of springs 33 to pressagainst the lower roll 11 when the cam bar is released and permitted toreturn under influence of its spring 40.

In order to affect this longitudinal movement of the cam bar 25 in timewith the stamp aflixing mechanism, I have fixed a cam C to theintermittently rotatable shaft S, which cam when it, is caused to rotateengages the arm 28 mounted on the shaft 29 to rock said shaft and swingthe long .arm 30 mountedthereon to reciprocate the cam bar 25 to whichits upper end 31 is connected by the link 32, see Fig. 2.

The operation of my. improved stam affixing machine is as follows :Thecnve ops are placed in. a pile at the entering end of the machine andare fed automatically and successively t0 the feed rolls 11 and 12 inthe usual way.

The envelop after being engaged by these rolls is advanced until itsforward edge strikes the stop pin 37 and during its forward passage, itengages the trip lever 34 which operates through the arm 35 and shaft 36to trip and start the stamp affixing mechanism in the manner shown anddescribed in Letters Patent 1194693, granted August 15, 1916, on aco-pending application.

This trip action starts the cam shaft S to rotate and make one completerevolution, which operation causes the cam O to act upon the arm 28,shaft 29, arm 30 and cam bar 25 to move thewedge-shaped cams 26 and 27beneath the rolls 20 and raise the feed roll 12 from the surface of theenvelop which immediately stops the feed of the same.

During the time that this roll is raised from the envelop, the stampallixing plunger 38, see Fig. 3, descends, the knife 39 severs the stampfrom its strip 30, and affixes it to the envelop, all of which ailixingmechanism is illustrated in Patent Number 1,170,949. Afterthe stamphasbeen affixed the continued rotation of the shaft C With- 7 draws thestop pin 37 and permits the arm 30-under influence of the spring 40 tore,

turn, Withdraws the cams from the rolls 20 and allows the feed roll 12to again press the surface of theenvelop against the lower driving rollcausing the same to be advanced to another set of feed rolls, not hereinshown, to carry it to any point desired.

I have shown and described only one is meansof supporting the envelopfeed roll but any means for discontinuing the feed ing actionof saidrolls u on the envelop during the interval of affixing the stamp Willfall within the spirit and scope o'f'my invention. Q I H Iclaim: v

1. An improvement in stamp aflixingimw chines comprising a tripmechanism, a pair of envelop feeding rollers, means controlled 7' bysaid trip mechanism for periodically Copies mm patent may be obtainedfor the trip mechanism to effect interruption of the feeding action ofsaid rolls after each envelop has advanced a predetermined distance, andstamp afliXi-ng means controlled 7 by the trip mechanismand operabletoaffix a stamp during the periodofinterrupted} feeding action.

3. An improvement in stamp afiixing ma chines comprising a tripmechanism, a pair of envelop feedlng rolls, a suspended frame havingmeans for supporting one of said c rolls, a cam engaging said suspendedframe, means controlled by the trip mechamsmfor' operating the cam tomove the framein a direction to separatesaid rolls, and stamp the periodof interrupted feeding action."

4. An improvement'in stamp affixing mas chines comprising a tripme'chanisnnaw pair '50 affixing means controlled by "the trip me a,anism and operable to aflixa stamp during 9. V

of envelop feeding rollers, means controlled separating said rolls tointerrupt the feeding action thereof after each'envelop has advanced apre-determlned d1stance,and a by said trip mechanism for) periodically Istamp plunger controlled by the trip mechanism and operable duringtheeration ofsaid rolls. a v a In testimony whereof my ture in presenceoftWo itnesses.- or

period of op;

signa-r CLARENCE EDMUND, SKERRY. j

WVitnesses:

E. 'J. WA'rnnMAN, V C. ELMERRIL L' five cents each, by addressing'theCommissioner o'f Patents, 7 Washington, D. G. I i

